School-desk.



L. D. ANDRUS.

SCHOOL DESK. 7 APPLICATION FILE'D JAN. 19 19 11- 1-,237,145,Patnted-A11g.14,-1917.

2 SHEETSSHEET l.

VIIIIJIII/ I INVENTOR WITNaSES I Zaire ATTORNEY L. D. ANDRUS.

SCHOOL DESK.

APPLICATION FILED JAN.19.1917- Patented Au 14, 191?.

2 SHEETS SHEET 2.

ZaWeZZfi; H BY -WITNE$SES ATTORNEY nowELL n. Animus; or MINuEAroLIs,MINNESOTA. v

Application filed January 19,1917. SeriaI No. 143,355.

To all whom it may concern. Be it known that LLOWELL D. ANDRos, acitizen of the United States, residing at Minneapolis, in the county ofHennepinand StatebfMinnesota, have invented new and useful Improvementsin School-Desks; of which the following is a specification.

This invention relates to desks of the type generally used sehools,colleges and the like. 4

' The object of the invention is toprovide I that the compartment may bemaintained 'in a cleanly and sanitary condition.

' Another object of the invention is to pro vide a desk capable of beingadjusted to suit'children of various'sizes'inorderthat it may bepositioned to the best possible advantage, thus preventing the necessityof the -userworkiugin a bent or cramped position,

and by this'means promoting thehealth, convenience and welfare ofthechildren."

' A still further object is the provision of a"desk, which, isneat andattractive in'fap pearance and which may "be easily and quicklyadjusted, the adjusting means per 'Initting the amount of adjustmentbeing determined and'when adjusted 'may"be* securely locked in position;

With the above and other ob ects in view the invention consists of thefollowing combination' an'd"arrangement of parts, herein after morefully described and illustrated in the accompanying drawings, in which;

Figure l is a side elevation of a single pedestal desk constructed inaccordance with the present invention and showing the book compartmentin section, the lid thereof being shown raised by dotted lines; ,V

Fig. 2 is an enlarged detail vertical sectional viewthrough theadjustable pedestal, showing the means of adjusting and looking the deskto different heights;. and

Fig. 3 is a side elevation of another form of desk, illustrating themethod of constructing the book compartment with a desk of this type.

Specification of Iilettersl atentf Patented Aug, 14,1191? i Fig. 4is'aperspective View of a modified 1 I o f ki id I Fig.5 1s a-fragr'nenta'ry"sect onal view on the line 5 5 errrgr-i,'i-llustratingthe' method of adjusting this form of desk), ".f'Referring moreSp eifia1.1y%0, the drawings similar characters ofreference? denote corre's ondi'n ioar'ts tlirou hout'the several t i wsA sshown in Fig; 1- the desk consists'of an inclined top 10 which issupportedby .a

single pedestal 11, secured to the topQlO preferably-bymeanso f "abracket 12, which is-shownas secured'to'the underside otthe saidtop,this bracket also torming'a'means tor'securing the pedestal thereto".The compartment which is indicated at 13.13 preferco extensive with "thefront "edge of the t( p*aii dextends below the same a s-utlicientfdistance to provide for the reception of books of the size ofordinary'text books;

One'fside' of thecomp'artment extends above the rep of the desk'as shownat'14, and has hinged thereto as at lf) a lid 16. This lid is- 'providedwith an L- 'shaped strip 17 falong its glower' edge"toforni a stop forcontact with the upper edge o-fthe' bracket 12. The

arrangement ofthe "upper'portio'n of the compartment l3-prmits the bookswhich are arranged therein upon their "ends to "be sufficientlyexposedfinview of the'pupil toenable him to select the one desired,without searching beneath the'top of-the desk, as is usual inth-et'ypeof desk constructed with a' ho rizontal bookcomp'artnintl\Vhenthe books are arranged with thetallest one at i the rear of theflcornpartment, all ofthe various books maybe exposed to' view-topermiteheready selection or the one desired: The bottom of thecompartment is formed of a peijfoiated or reticulated member-181st thatshould dust or dirt enter the compartment it will readily sift through.

In order to permit the top of the desk to be adjusted to suit persons'ofvarious sizes, the pedestal 11 is composed of telescopic sections 19 and20, the section 19being secured The said sectionl9 is adjustable in thesection 20,1and for this purpose is provided with adjusting teeth .21,these teeth being spaced at a distance between centers of.

about one-half an inch, in order that the amount of adjustment may bedetermined by moving the section 19 the desired num- .to or formedintegral with the front 12.

ber of teeth. Secured within the section 20,

in the path of the teeth 21 is a spring pawl 22, which is provided witha tooth 23 for engagement with the teeth 21. Also carried by the section20 is a locking screw 24k, the shank of which is positioned to engagethe rear of the tooth 23 for the purpose of locking the section 19 inits adjusted position.

Various changes in the form and proportion of the invention may be made,as for example the book compartment may be arranged along one side ofthe top 10, or it may be applied to a type ofdesk different from the onejust described. In Fig. 3 there .is illustrated one of such difierenttype, the compartment being secured within the side standards 25 of thedesk top 26 and the back of the seat for the pupil just in frontbeingsecured against the front side of the book compartment.

It is of course understood that the pedestal,1l may be applied to chairsused in connection with the adjustable desk, or that any otheradjustable form of chair may be used.

In the modification shown in Figs. 4: and 5, there is illustrated a desksupported upon adjustable side standards 30. These standards comprise astationary member 31 and an adjustable member 32. The stationary memberincludes spaced legs 33, which are joined together by connecting bars34:, the topmost connecting bar being provided with a vertical member35, which, together with the extended ends 36 of the legs 33 formprojecting portions which are adapted to be engaged by the tubularmembers 37 of the adjustable member 32 of the side standards. The member35 is formed with teeth 38, after the manner of the teeth 21 previouslydescribed, and these teethv are adapted to be engaged by a spring pawl39 which is secured to and projects through an opening 40 formed in thecentral tubular member 37. This central member 37 is provided. with ayoke 41, in which operates a set screw 42 for locking the side standardsin their adjusted position. The adjustable member-32 is secured to theunderside of the top of the desk by means of the bracket 43, which isformed with sockets 4% to receive each of the tubular members 37. Thedesk top 45 is provided with a book compartment 46, similar to the onedescribed in connection with the preceding form of desk, the saidcompartment being'provided with a hinged lid 17 as before explained. InFig. 4 of the drawings there is illustrated the idea of book arrangementto which. this style of desk is adapted, the said arrangement permittingall of the books to be viewed for the purpose of permitting a readyselection.

From the foregoing description when taken in connection with theaccompanying drawings it is believed that the objects and constructionof the invention will be apparent, and further description is deemdunnecessary.

Having described the invention, what is claimed is;

1. The combination with a desk,.of an adjustable pedestal comprisingtelescopic sections, adjusting teeth formed upon one of said sections, aspring pawl carried by the other section for engagement with said teethand a locking screw carried by the last mentioned section and engagingsaid pawl to lock said sections in their ad usted position.

2. The combination with two members telescopically arranged, ofcorrugations carried by the inner member, the outer member beingprovided with an opening, a resilient element removably secured upon theouter member, a detent carried by the resilient element and adapted toextend through said opening for engagement with said corrugations and anadjusting screw engaging the resilient element to hold the members in,adj usted osition.

In testimony whereof I afliX my signature.

LO'WELL D. ANDRUS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

